Phycoremediation of dairy wastewater by using green microlgae: botryococcus sp.
Dairy wastewater are usually much polluted due to the high level of nutrient content such as phosphate, nitrate, sulfate etc. The pollution level are indicated by few characteristics such as BOD (243 mg/L), COD (324 mg/L), pH (9.08), Total Nitrogen (65.06 mg/L), Total Organic Carbon (143.3 mg/L), To...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Published: |
Trans Tech Publications Inc
2015
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| Subjects: | |
| Online Access: | http://www.dx.doi.org/10.4028/www.scientific.net/AMM.773-774.1318 http://www.dx.doi.org/10.4028/www.scientific.net/AMM.773-774.1318 http://eprints.uthm.edu.my/8228/1/dr_hazel_6.pdf |
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| Summary: | Dairy wastewater are usually much polluted due to the high level of nutrient content such
as phosphate, nitrate, sulfate etc. The pollution level are indicated by few characteristics such as
BOD (243 mg/L), COD (324 mg/L), pH (9.08), Total Nitrogen (65.06 mg/L), Total Organic Carbon
(143.3 mg/L), Total Carbon (312.9 mg/L) and Inorganic Carbon (169.6 mg/L). In this study,
Botryococcus sp., a species of green microalgae are used to determine whether it can purify dairy
wastewater. In spite of that, the microalgae growth over phycoremediation process also determined
daily based on hemocytometer counting. From 100% concentration of dairy wastewater,
Botryococcus sp. was capable to reduce the parameters such as BOD of 73.3%, TOC of 65.1%, TC
of 61.4%, IC of 58.3% and COD of 48.8% on the 15 days of phycoremediation. Meanwhile, for the
50% of dairy wastewater, the same microalgae be able to remove the parameter such as phosphate
of 78.7%, BOD of 73.8%, TOC of 70%, TC of 68,8%, IC of 59.4% and COD of 50%. The overall
result from this study shown that the Botryococcus sp. is useful to reduce the inorganic and organic
pollutant in dairy wastewater and could be potential to be used for any different wastewater. |
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